NewEnergyNews: CHINA CAN DO MORE WITH WIND/

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    Sunday, September 20, 2009

    CHINA CAN DO MORE WITH WIND

    Wind Energy Could Power China, Study Finds
    Ben Block, September 16, 2009 (Worldwatch Institute)

    "Wind power alone could provide electricity for all of China if the country overhauls its rural grids and raises the subsidy for wind energy, [Potential for Wind-Generated Electricity in China] finds…[Now 4th in the world in installed wind capacity]…coal-fired power plants continue to supply most of the country's rising electricity needs - a development path that scientists predict will lead to dangerous levels of climate change.

    "New models of China's wind resources suggest that coal is not the only cost-effective energy option for the country. The winds blowing in China are powerful enough to generate low-carbon electricity that eliminates "much, if not all" of the power sector's future greenhouse gas emissions, according to researchers from Harvard University and Beijing's Tsinghua University…"


    click to enlarge

    "As China's [1 gigawatt (GW) per week/ 50 GW per year] demand for electricity increases an estimated 10 percent each year, the country is projected to need an additional 800 GW of coal-generated electricity during the next 20 years. With current wind energy payments of 0.4 RMB (US$0.059) per kilowatt-hour, wind energy could displace 23 percent of coal-generated electricity. If so, China would eliminate as much as 0.62 gigatons of annual carbon dioxide emissions, or 9.4 percent of the country's current annual emissions…

    "Wind energy could supply all of China's 2030 electricity demands, however, if wind contract prices were increased to 0.516 RMB (US $0.076) per kilowatt-hour…Rather than increase carbon dioxide emissions by 3.5 gigatons each year through 2030, as current policies would allow, the analysis determined that wind energy could replace 640 GW of coal-fired power. The switch would reduce emissions by 30 percent and require an investment of some 6 trillion RMB (US$900 billion)…"


    click to enlarge

    "Extensive regions of northern and western China hold particularly large potential for wind energy, specifically the provinces of Inner Mongolia, Xinjiang, Gansu, and Tibet. But the windiest areas are sparsely populated regions where electricity demands are low. High voltage transmissions lines are needed to connect these areas with electricity consumers in rapidly growing eastern China…[and] existing wind farms are struggling to incorporate into the grid. Chinese law gives renewable power priority access to the grid, but a physical lack of grid capacity has limited wind energy's ability to reach customers…

    "Still, wind farms are expanding rapidly across China…[The country passed the 2010 wind energy target of 5 GW in 2007 and] supplied 12.2 GW of installed capacity last year, about 0.4 percent of China's total electricity supply. China announced in May that more than 100 GW of wind energy capacity will be installed by 2020 and that renewable energy will supply 40 percent of the energy market by 2050…In an effort to stimulate the domestic wind industry, the Chinese government also issued tax rebates last year for state-owned wind turbine manufacturers. Of the 70 Chinese manufacturers that produce wind turbines, more than 20 were formed last year…"

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